AcoSail/kernel_optimize_test
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13e6d5cdde
kernel_optimize_test/fs/xfs
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Christoph Hellwig 13e6d5cdde xfs: merge fsync and O_SYNC handling 
The guarantees for O_SYNC are exactly the same as the ones we need to
make for an fsync call (and given that Linux O_SYNC is O_DSYNC the
equivalent is fdadatasync, but we treat both the same in XFS), except
with a range data writeout.  Jan Kara has started unifying these two
path for filesystems using the generic helpers, and I've started to
look at XFS.

The actual transaction commited by xfs_fsync and xfs_write_sync_logforce
has a different transaction number, but actually is exactly the same.
We'll only use the fsync transaction going forward.  One major difference
is that xfs_write_sync_logforce never issues a cache flush unless we
commit a transaction causing that as a side-effect, which is an obvious
bug in the O_SYNC handling.  Second all the locking and i_update_size
vs i_update_core changes from 978b723712
never made it to xfs_write_sync_logforce, so we add them back.

To make xfs_fsync easily usable from the O_SYNC path, the filemap_fdatawait
call is moved up to xfs_file_fsync, so that we don't wait on the whole
file after we already waited for our portion in xfs_write.

We'll also use a plain call to filemap_write_and_wait_range instead
of the previous sync_page_rang which did it in two steps including
an half-hearted inode write out that doesn't help us.

Once we're done with this also remove the now useless i_update_size
tracking.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: Felix Blyakher <felixb@sgi.com>
2009-09-01 12:45:57 -05:00
..
linux-2.6 xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
quota xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
support xfs: cleanup uuid handling 2009-03-30 10:21:31 +02:00
Kconfig xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
Makefile xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
xfs_acl.h switch xfs to generic acl caching helpers 2009-06-24 08:17:07 -04:00
xfs_ag.h xfs: speed up free inode search 2009-09-01 12:45:48 -05:00
xfs_alloc_btree.c [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_alloc_btree.h
xfs_alloc.c un-static xfs_read_agf 2009-08-31 14:46:21 -05:00
xfs_alloc.h xfs: factor out code to find the longest free extent in the AG 2009-03-16 08:29:46 +01:00
xfs_arch.h xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
xfs_attr_leaf.c xfs: remove m_attroffset 2009-03-29 19:26:46 +02:00
xfs_attr_leaf.h [XFS] Remove macro-to-function indirections in attr code 2009-01-09 15:46:44 +11:00
xfs_attr_sf.h
xfs_attr.c xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get 2009-08-12 01:08:01 -05:00
xfs_attr.h
xfs_bit.c
xfs_bit.h [XFS] Remove macro-to-function indirections in the mask code 2009-01-09 15:53:54 +11:00
xfs_bmap_btree.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_bmap_btree.h xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_bmap.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_bmap.h xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_btree_trace.c
xfs_btree_trace.h
xfs_btree.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_btree.h xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_buf_item.c
xfs_buf_item.h
xfs_da_btree.c xfs: switch to NOFS allocation under i_lock in xfs_da_buf_make 2009-08-12 01:07:14 -05:00
xfs_da_btree.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_dfrag.c xfs: fix double unlock in xfs_swap_extents() 2009-06-01 22:59:29 -05:00
xfs_dfrag.h
xfs_dinode.h xfs: remove m_litino 2009-03-29 09:51:14 +02:00
xfs_dir2_block.c xfs: kill ino64 mount option 2009-03-29 09:51:08 +02:00
xfs_dir2_block.h
xfs_dir2_data.c
xfs_dir2_data.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_dir2_leaf.c xfs: kill ino64 mount option 2009-03-29 09:51:08 +02:00
xfs_dir2_leaf.h
xfs_dir2_node.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_dir2_node.h
xfs_dir2_sf.c xfs: kill ino64 mount option 2009-03-29 09:51:08 +02:00
xfs_dir2_sf.h
xfs_dir2_trace.c
xfs_dir2_trace.h
xfs_dir2.c xfs: switch to NOFS allocation under i_lock in xfs_dir_cilookup_result 2009-08-12 01:07:23 -05:00
xfs_dir2.h
xfs_dmapi.h
xfs_dmops.c
xfs_error.c
xfs_error.h
xfs_extfree_item.c
xfs_extfree_item.h [XFS] remove always-true #ifndef HAVE_FORMAT32 tests 2009-01-22 14:07:31 +11:00
xfs_filestream.c xfs: split xfs_sync_inodes 2009-06-08 15:35:48 +02:00
xfs_filestream.h
xfs_fs.h xfs: update max log size 2009-06-08 15:32:59 +02:00
xfs_fsops.c xfs: avoid memory allocation under m_peraglock in growfs code 2009-08-12 01:06:51 -05:00
xfs_fsops.h filesystem freeze: add error handling of write_super_lockfs/unlockfs 2009-01-09 16:54:42 -08:00
xfs_ialloc_btree.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_ialloc_btree.h xfs: remove superflous inobt macros 2009-02-09 08:37:14 +01:00
xfs_ialloc.c xfs: speed up free inode search 2009-09-01 12:45:48 -05:00
xfs_ialloc.h xfs: rationalize xfs_inobt_lookup* 2009-09-01 12:45:39 -05:00
xfs_iget.c xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_inode_item.c xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_inode_item.h [XFS] remove always-true #ifndef HAVE_FORMAT32 tests 2009-01-22 14:07:31 +11:00
xfs_inode.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_inode.h xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_inum.h xfs: remove XFS_INO64_OFFSET 2009-08-31 14:46:22 -05:00
xfs_iomap.c xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
xfs_iomap.h xfs: remove xfs_flush_space 2009-04-06 18:49:12 +02:00
xfs_itable.c xfs: rationalize xfs_inobt_lookup* 2009-09-01 12:45:39 -05:00
xfs_itable.h xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_log_priv.h xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_log_recover.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_log_recover.h
xfs_log.c xfs: fix spin_is_locked assert on uni-processor builds 2009-08-12 01:08:27 -05:00
xfs_log.h xfs: cleanup log unmount handling 2009-03-16 08:19:29 +01:00
xfs_mount.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_mount.h xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_mru_cache.c xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_mru_cache.h xfs: add more statics & drop some unused functions 2009-08-31 14:46:20 -05:00
xfs_quota.h xfs: fix warnings with CONFIG_XFS_QUOTA disabled 2009-06-12 21:15:12 -05:00
xfs_refcache.h
xfs_rename.c xfs: kill xfs_qmops 2009-06-08 15:33:32 +02:00
xfs_rtalloc.c xfs: make sure to free the real-time inodes in the mount error path 2009-02-04 09:33:58 +01:00
xfs_rtalloc.h xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_rw.c xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_rw.h xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_sb.h [XFS] Remove the rest of the macro-to-function indirections. 2009-01-19 14:45:55 +11:00
xfs_trans_ail.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_trans_buf.c fs/xfs: Correct redundant test 2009-08-31 14:46:22 -05:00
xfs_trans_extfree.c
xfs_trans_inode.c
xfs_trans_item.c xfs: fix various typos 2009-03-29 09:55:42 +02:00
xfs_trans_priv.h
xfs_trans_space.h xfs: remove superflous inobt macros 2009-02-09 08:37:14 +01:00
xfs_trans.c Merge branch 'master' of git://oss.sgi.com/xfs/xfs into for-linus 2009-06-12 21:28:59 -05:00
xfs_trans.h xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_types.h xfs: remove uchar_t/ushort_t/uint_t/ulong_t types 2009-02-09 08:37:39 +01:00
xfs_utils.c xfs: kill xfs_qmops 2009-06-08 15:33:32 +02:00
xfs_utils.h
xfs_vnodeops.c xfs: merge fsync and O_SYNC handling 2009-09-01 12:45:57 -05:00
xfs_vnodeops.h xfs: use generic Posix ACL code 2009-06-10 17:07:47 +02:00
xfs.h